Anchor Selection Strategies for DIF Analysis
نویسندگان
چکیده
منابع مشابه
Anchor selection strategies for DIF analysis: Review, assessment, and new approaches
Differential item functioning (DIF) indicates the violation of the invariance assumption for instance in models based on item response theory (IRT). For item-wise DIF analysis using IRT, a common metric for the item parameters of the groups that are to be compared (e.g. for the reference and the focal group) is necessary. In the Rasch model, therefore, the same linear restriction is imposed in ...
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In the analysis of differential item functioning (DIF) using item response theory (IRT), a common metric is necessary to compare item parameters between groups of test-takers. In the Rasch model, the same restriction is placed on the item parameters in each group in order to define a common metric. However, the question how the items in the restriction – termed anchor items – are selected appro...
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ژورنال
عنوان ژورنال: Educational and Psychological Measurement
سال: 2014
ISSN: 0013-1644,1552-3888
DOI: 10.1177/0013164414529792